Genetic and molecular dissection of ginseng ( Panax ginseng Mey.) germplasm using high-density genic SNP markers, secondary metabolites, and gene expressions

Genetic and molecular knowledge of a species is crucial to its gene discovery and enhanced breeding. Here, we report the genetic and molecular dissection of ginseng, an important herb for healthy food and medicine. A mini-core collection consisting of 344 cultivars and landraces was developed for gi...

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Published inFrontiers in plant science Vol. 14; p. 1165349
Main Authors Liu, Sizhang, Jiang, Yue, Wang, Yanfang, Huo, Huimin, Cilkiz, Mustafa, Chen, Ping, Han, Yilai, Li, Li, Wang, Kangyu, Zhao, Mingzhu, Zhu, Lei, Lei, Jun, Wang, Yi, Zhang, Meiping
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 28.07.2023
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Summary:Genetic and molecular knowledge of a species is crucial to its gene discovery and enhanced breeding. Here, we report the genetic and molecular dissection of ginseng, an important herb for healthy food and medicine. A mini-core collection consisting of 344 cultivars and landraces was developed for ginseng that represents the genetic variation of ginseng existing in its origin and diversity center. We sequenced the transcriptomes of all 344 cultivars and landraces; identified over 1.5 million genic SNPs, thereby revealing the genic diversity of ginseng; and analyzed them with 26,600 high-quality genic SNPs or a selection of them. Ginseng had a wide molecular diversity and was clustered into three subpopulations. Analysis of 16 ginsenosides, the major bioactive components for healthy food and medicine, showed that ginseng had a wide variation in the contents of all 16 ginsenosides and an extensive correlation of their contents, suggesting that they are synthesized through a single or multiple correlated pathways. Furthermore, we pair-wisely examined the relationships between the cultivars and landraces, revealing their relationships in gene expression, gene variation, and ginsenoside biosynthesis. These results provide new knowledge and new genetic and genic resources for advanced research and breeding of ginseng and related species.
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These authors have contributed equally to this work
Edited by: Odd Arne Rognli, Norwegian University of Life Sciences, Norway
Reviewed by: Mallikarjuna Rao Kovi, Norwegian University of Life Sciences, Norway; Abdelhameed Elameen, Norwegian Institute of Bioeconomy Research, Norway
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2023.1165349